SAN CARLOS RESERVOIR, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(027480) SAN CARLOS RESERVOIR
From Year=1900 To Year=2012
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	209	296	481	693	989	1246	1441	1381	1175	851	441	208	9411
40 S	209	505	987	1679	2668	3915	5355	6736	7911	8762	9203	9411	9411
45 M	88	168	330	543	834	1096	1286	1226	1025	696	296	88	7677
45 S	88	256	586	1129	1963	3059	4345	5571	6596	7292	7588	7677	7677
50 M	20	69	193	396	679	946	1131	1071	875	542	167	22	6111
50 S	20	90	283	679	1358	2304	3435	4506	5381	5923	6090	6111	6111
55 M	2	17	87	257	525	796	976	916	725	391	72	2	4766
55 S	2	19	106	363	888	1684	2660	3576	4301	4692	4763	4766	4766
60 M	0	2	26	139	374	646	821	761	575	248	20	0	3612
60 S	0	2	28	166	541	1187	2008	2769	3344	3592	3611	3612	3612

Corn Growing Degree Days
50 M	158	209	321	447	623	758	906	882	750	548	295	156	6053
50 S	158	367	687	1135	1758	2516	3422	4304	5053	5601	5897	6053	6053

M = Monthly Data
S - Running sum of monthly data.
Growing Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. This is done for each day of the month and summed.
Corn Growing Degree Day units have the limitations that the maximum daily temperatures greater than 86 F are set to 86 F and minimums less than 50 F are set to 50 F.
Table updated on Oct 31, 2012
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Western Regional Climate Center, wrcc@dri.edu